The inheritance trend of main characters was studied in early peach variety F_1 progenies of 'Tsukuba-84' × 'ZaoYoull8'. The results showed that heritability of oval was higher than round and el-liptic in the fruit shape. The maturity date distributed in 80 to 90 days and 100 to 110 days,and only 9. 6 % of the plants distributed in 90 to 100 days. The fruit weight showed a smaller tendency and it was lower than male,female and mid-parent in F_1 progenies. The F_1 progenies exhibited the tendency of sweet flavor or sour-sweet flavor, and sweet flavor showed stronger than the other characters, occupied of 40. 35 %. Fruit color,hair and stone adherence to flesh in F_1 progenies were controlled by a pair of independent al-leles each. The results were consistent with Mendelian inheritance of genetic. There were significant posi-tive correlations between fruit weight and the maturity date, and between soluble solid content and flesh flavor.%以早熟桃品种'筑波84'×'早油118'杂交组合为试材,分析了F_1代果实主要性状的遗传倾向.结果表明:F_1代果实形状中,卵圆形对椭圆和圆形占遗传优势;F_1代果实成熟期集中分布在80～90 d和100～110 d 2个区域,而分布在90～100 d的杂种单株较少,只占9.6 %;F_1代平均果重与父母本和亲中值相比,呈现偏小趋势;在F_1代群体中,大部分桃果实风味趋向于甜或酸甜,其中甜风味占40.35 %,遗传性强;F_1代果肉颜色、有无绒毛及核的粘离等均由一对等位基因控制,试验结果均符合孟德尔遗传规律;果实重量与果实生育期呈极显著正相关,可溶性固形物和风味呈极显著正相关.
展开▼
